PS Magazine - TB 43-PS-668

PS, The Preventative Maintenance Monthly

ISSUE 668

JULY 2008

PS Magazine - TB 43-PS-668 - Page 13 of 33
22
PS 668
JULY 08
23
PS 668
JULY 08
U
nlined M2 machine gun barrels don’t know when to leave. Even though the Army
hasn’t bought any of the barrels in years, they keep showing up in units. And they’re
bad news.
Unlined barrels wear out 80 percent faster than lined ones and they shoot saboted
light armor penetrator (SLAP) ammo very inaccurately. So armorers need to line out
any unlined barrels in their unit.
The easiest way to tell if a
barrel is unlined is to check the
part number on the outside of
the barrel. A
lined
barrel has a
part number of 7266131. Any
other number means the barrel is
unlined.
Turn in any unlined barrels
you F
nd. They should not be
used for anything, even training.
Order a lined barrel with NSN
Dear Editor,
Here at Ft Leonard Wood, we run into situations where the storage cases
for night vision and small arms sights are either difficult to replace or don’t
do a good job protecting the sights. And some sights don’t come with
storage cases.
We’ve found that the Pelican company is a good source for storage
cases of all types. They sell cases that have pull-and-pluck foam that allows
you to fashion exactly the space needed inside the case for the particular
sight. The sight is protected on all sides with the foam, so there’s almost
no chance it can be damaged.
Pelican has a military catalog that can be accessed online:
http://pelican.com/pdf/Military_Catalog_Final.pdf
The catalog includes the dimensions of the inside and outside of each
case, foam depth, and the case’s NSN.
And the cases have a lifetime warranty.
Jim York
DOL
Ft Leonard Wood, MO
Editor’s note:
It is better to spend a few dollars on
a good storage case for your sights than thousands
replacing a sight. You can probably F
nd similar
storage cases at your local large discount home
repair store. Thanks for the tip
!
M2 Machine Gun…
Sights…
A Better Case for Cases
hey
, you’re
not going
to just
leave me
lying
around,
are you?
I need
protection!
no problem. I just
got you a storage
case with lots of
foam cushioning.
nothing
can hurt
you.
oh, I
feel so
safe!
Check here for part number
ah ha!
an unlined
barrel!
ok,
I’ll go
quietly.
The Line
on Unlined
Barrels
668.22-23.indd
1-2
6/6/08
2:01:50 PM
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